code: def expand_full_path(path):
      """Expand a relative path to a full path
  
      For example,
        '~/tmp' may be expanded to '/Users/username/tmp'
        'abc/def' may be expanded to '/pwd/abc/def'
      """
      return os.path.abspath(os.path.expanduser(path))
  
file_path: turicreate/src/python/turicreate/util/_file_util.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import os
  import logging
  import shutil
label_desc: Use image node_id 2 for calling a global function with example usage: expand_full_path(path) and returns: os